Classifications

• • D—TEXTILES; PAPER
  • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
  • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
  • D06F17/00—Washing machines having receptacles, stationary for washing purposes, wherein the washing action is effected solely by circulation or agitation of the washing liquid
  • D06F17/06—Washing machines having receptacles, stationary for washing purposes, wherein the washing action is effected solely by circulation or agitation of the washing liquid by rotary impellers
• • D—TEXTILES; PAPER
  • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
  • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
  • D06F23/00—Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement, the receptacle serving both for washing and for centrifugally separating water from the laundry 
  • D06F23/06—Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement, the receptacle serving both for washing and for centrifugally separating water from the laundry  and rotating or oscillating about an inclined axis
• • D—TEXTILES; PAPER
  • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
  • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
  • D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
  • D06F37/30—Driving arrangements 
  • D06F37/40—Driving arrangements  for driving the receptacle and an agitator or impeller, e.g. alternatively

Definitions

• the present invention relates to drum type washing machines, and more
• the drum type washing machine is improved, to make introduction and take out of
• the washing machine is a home appliance for removing dirt from
• upstanding cylindrical inner tub rotatably mounted therein, but also to increase a
• FIG. 1 illustrates a section of a related art drum type washing machine
• the driving unit provided to a rear of the tub 2 with a rotor 4 and a stator 5,
• the washing is made by an impact of drop of the laundry lifted
• the drum 3 is mounted horizontally.
• the related art drum type washing machine makes washing by a simple method of lifting and dropping laundry with the lifters, the related art drum type
• washing machine has a limit in enhancing a washing performance.
• An object of the present invention is to provide a tilted drum type washing
• the object of the present invention can be achieved by providing The drum
• type washing machine includes a tub of plastic having a wall portion for holding
• a rotor connected to a rear end of the drum shaft to constitute a motor together with the stator, a pulsator rotatably mounted in the drum, a pulsator shaft mounted to pass
• pulsator control means for braking/releasing rotation of the rotation of the pulsator.
• drum type washing machine in which rotation of a pulsator in a drum is controlled by
• drum shaft a rotor secured to the rotor bushing for transmission of driving force to the
• drum shaft through the rotor bushing, a rotor secured to a rear end of the drum shaft to
• pulsator shaft mounted to pass through the hollow of the drum shaft, having a fore end
• a braking device including a solenoid secured to the tub, a plunger moving back and forth in the solenoid,
• solenoid for braking/releasing rotation of the pulsator, the method comprising the steps
• the pulsator is released to rotate freely.
• washing machine includes a tub of plastic having a wall portion for holding washing
• drum inside of the tub for transmission of driving power from a motor to the drum, at
• stator fixedly secured to the rear wall portion of the tub, a stator fixedly secured to the rear wall portion of the tub, a stator fixedly secured to the rear wall portion of the tub, a stator fixedly secured to the rear wall portion of the tub, a stator fixedly secured to the rear wall portion of the tub, a stator fixedly secured to the rear wall portion of the tub, a stator fixedly secured to the rear wall portion of the tub, a stator fixedly secured to the rear wall portion of the tub, a stator fixedly secured to the rear wall portion of the tub, a stator fixedly secured to the rear wall portion of the tub, a stator fixedly secured to the rear wall portion of the tub, a stator fixedly secured to the rear wall portion of the tub, a stator fixedly secured to the rear wall portion of the tub, a stator fixedly secured to the rear wall portion of the tub, a stator fixedly secured to the rear wall portion of the tub, a stator fixedly secured to the rear wall portion of the tub,
• stator a pulsator rotatably mounted in the drum, having hot air supply holes in a main
• a pulsator shaft mounted to pass through the hollow of the drum shaft
• pulsator control means for braking/releasing
• hot air supply means for supplying hot air
• pulsator inside of the drum vary movement of the laundry and water circulation within
• the drying duct also serving as a balance weight improves a balance sustaining
• FIG. 1 illustrates a section of a related art drum type washing machine
• FIG. 2 illustrates a longitudinal section of a drum type washing machine in
• FIG. 3 illustrates a key part section, an enlarged view of the "A" part in FIG. 2,
• FIG. 4 illustrates a key part section, an enlarged view of the "A" part in FIG. 2,
• FIG. 5 illustrates a perspective view of the pulsator in FIG. 2;
• FIG. 6 illustrates a perspective view showing a pulsator rotation control pulley
• FIG. 7 illustrates a perspective view of a back side of FIG. 6
• FIG. 8 illustrates a perspective view of a rotor bushing in FIG. 3 or 4
• FIG. 9 illustrates a longitudinal section of a drum type washing machine in
• FIG. 10 illustrates a key part section, an enlarged view of the "A" part in FIG. 9,
• FIG. 11 illustrates a key part section, an enlarged view of the "A" part in FIG. 9,
• FIG. 12 illustrates a perspective view showing the pulsator in FIG. 9 as an
• FIG. 2 illustrates a longitudinal section of a drum type washing machine
• FIG. 3 illustrates a key part section, an enlarged view of the "A" part in FIG. 2, showing
• FIG. 4 illustrates a key part section, an enlarged view of the
• FIG. 5 illustrates a perspective view of the pulsator in FIG. 2
• FIG. 6 illustrates a
• FIG. 7 illustrates a perspective view of a back side of FIG. 6, and FIG. 8
• the drum type washing machine includes a tub 2 of plastic having a wall portion for holding washing water and securing a driving unit
• drum shaft 6 to constitute a BLDC motor together with the stator 5, a pulsator 7
• the pulsator control means includes a pulley 15 in rear of the rotor 4 connected
• braking device 11 for controlling rotation of the pulsator 7 in the drum 3 by
• the stator 5 is fastened to the rear wall of the tub 2 with fastening members,
• the pulsator shaft 8 is supported on oiless bearings 800a, and 800b mounted on a front and a rear of the shaft 8, respectively.
• drum shaft 6 are mounted on a front side and a rear side of the shaft respectively for
• the front side and rear side of the drum shaft 6 is favorable for secure supporting of the
• the front side bearing 113a of the drum shaft 6 has a diameter grater than a
• the braking device 11 includes a solenoid 11a secured to the tub 2, and a
• an elastic member such as a compression spring lie, is mounted in the solenoid 11a.
• the braking device of the solenoid 11a may be secured, not to the tub 2, but to other
• the rotor bushing 13 is positioned in rear, or front of a rotor frame 4a.
• the rotor bushing 13 includes an engagement portion 13a for placing in, and
• the coupling portion 13b of the rotor bushing 13 includes a
• plurality of positioning projections formed as one body therewith and projected toward
• reinforcing ribs 13c are provided further at least one of the
• the pulsator shaft 8 has serrations on opposite end portion for engagement with
• the pulley 15 includes a rear wall portion 15a covering the rear wall of the
• the engagement portion 15c of the pulley 15 has a boss shape projected from
• the drum shaft 6 is formed of an SM 45 group of material, or stainless steel,
• drum shaft 6 is formed of an SM 45 group of material, a surface of the drum shaft 6 is formed of an SM 45 group of material, a surface of the drum shaft 6 is formed of an SM 45 group of material, a surface of the drum shaft 6 is formed of an SM 45 group of material, a surface of the drum shaft 6 is formed of an SM 45 group of material, a surface of the drum shaft 6 is formed of an SM 45 group of material, a surface of the
• drum shaft 6 is plated with chrome Cr for reducing wear, and friction, and enhancing
• the surface of the drum shaft 6 is plated with
• drum shaft 6 it is required to plate a sliding surface of the water seal 12 without fail.
• drum shaft 6 is formed of stainless steel
• the washing fin 7a has at least one sloped surface in a radial
• the main surface of the pulsator 7 has a predetermined curvature, and an
• a maximum height 7a of the washing fin 7a of the pulsator 7 is 5 ⁇ 15% of the
• drum 3 and the tub 2 are mounted such that
• axes thereof are tilted at 10 - 30° to ground, for convenience of introduction/taking out
• the tilted angle of 10 ⁇ 30° range can be
• tub 2 is below 30°.
• the drum 3 has a plurality of lifters 3 a on an inside
• the auto-balancers 9 may be mounted on the inside of the front
• the auto-balancer 9 may have a single fluid chamber, or more
• the auto-balancer 9 has a height 'FT greater than a width ' W
• front sides ground thereof enables convenient introduction, and taking out of laundry.
• the present mvention can improve the washing performance significantly because the
• drum type washing machine of the present invention has the pulsator 7 mounted therein
• the washing performance can be
• the plunger lib may be placed. in the holding
• drum type washing machine of the present invention can reduce system vibration caused by an eccentric load in the drum 3 effectively in spinning by providing the auto-
• balancers 9 to the front and the rear of the drum 3 for balancing the drum by means of
• drum type washing machine of the present invention is a drum type washing machine of the present invention.
• the drum 3 enables effective reduction of vibration of the rear side.
• the tilted tub 2 also requires the drum 3 in the
• tub 2 to be tilted, to consume less washing water filled in the drum 3 in washing.
• washing water leans on a rear side
• a process for washing by rotating the drum 3 in a state the pulsator 7 is
• the pulley 15 can rotate no more, to hold the pulsator 7 in
• the drum 3 may rotate in left/right directions alternately under
• the washing is performed as the laundry is lifted by the
• the washing machine of the present invention has a greater back
• the washing water circulation spreads the laundry gathered on a
• the drum 3 can rotate in left/right
• the pulsator 7 rotates in a left, or right direction under the interference, of the laundry and the washing water circulating in
• the laundry 7 collided onto the pulsator 7 moves forward.
• the drum type washing machine of the present invention can perform
• the washing may be performed by controlling the
• FIG. 9 illustrates a longitudinal section of a drum type washing machine in
• FIG. 10 illustrates a key part section, an enlarged view of the "A" part in FIG. 9,
• FIG. 11 illustrates a key part section, an enlarged
• FIG. 9 view of the "A" part in FIG. 9, showing a pulsator in rotation.
• FIG. 12 illustrates a perspective view showing the pulsator in FIG. 9 as an
• FIGS. 6 to 8 will be identical to the first embodiment, in descriptions related thereto, FIGS. 6 to 8 will be identical to the first embodiment, in descriptions related thereto, FIGS. 6 to 8 will be identical to the first embodiment, in descriptions related thereto, FIGS. 6 to 8 will be identical to the first embodiment, in descriptions related thereto, FIGS. 6 to 8 will be identical to the first embodiment, in descriptions related thereto, FIGS. 6 to 8 will be identical to the first embodiment, in descriptions related thereto, FIGS. 6 to 8 will be
• a second preferred embodiment of the present invention includes a tub 2 of plastic
• drum 3 rotatably mounted in the tub 2 having hot air pass through holes 300b in a rear
• a drying duct 30 fixedly secured to one side of an upper side of the rear wall of the
• tub 2 having a heater 32 and a fan 31 mounted on an inside flow passage thereof for
• a rotor 4 connected to a rear end of the drum shaft 6 to constitute a BLDC motor
• the pulsator 7 has a plurality of small hot air supply holes 710 in a main surface (i.e., a surface) for serving as a flow passage for supplying hot air to an inside of
• the pulsator 7 has a rib 700 at an edge of an outside circumference bent toward
• the spider 16 has a groove 160 in a shape in complementary to a shape of the
• cutoff rib 220
• a length of the cutoff rib may be formed differently, for not
• the stator 5 is fastened to the rear wall of the tub 2 with fastening members,
• drum shaft 6 are mounted on a front side and a rear side of the shaft respectively for
• the front side and rear side of the drum shaft 6 is favorable for secure supporting of the
• the front side bearing 113a of the drum shaft 6 has a diameter grater than a
• the braking device 11 includes a solenoid 11a secured to the tub 2, and a
• an elastic member such as a compression spring lie
• the pulley 15 automatically if the pulley 15 coupled to the pulsator 7 rotates by an
• plunger lib becomes to be positioned away from the holding recess 150 because the
• plunger lib moves forward for braking the pulsator 7.
• the braking device of the solenoid 11a may be secured, not to the tub 2, but to other
• the rotor bushing 13 is positioned in rear, or front of a rotor frame 4a.
• the rotor bushing 13 includes an engagement portion 13a for placing in, and
• the coupling portion 13b of the rotor bushing 13 includes a plurality of positioning projections formed as one body therewith and projected toward
• reinforcing ribs 13c are provided further at least one of the
• the pulsator shaft 8 has serrations on opposite end portion for engagement with
• the pulley 15 includes a rear wall portion 15a covering the rear wall of the
• the engagement portion 15c of the pulley 15 has a boss shape projected from
• the drum shaft 6 is formed of an SM 45 group of material, or stainless steel,
• drum shaft 6 is formed of an SM 45 group of material, a surface of the drum shaft 6 is formed of an SM 45 group of material, a surface of the drum shaft 6 is formed of an SM 45 group of material, a surface of the drum shaft 6 is formed of an SM 45 group of material, a surface of the drum shaft 6 is formed of an SM 45 group of material, a surface of the drum shaft 6 is formed of an SM 45 group of material, a surface of the
• drum shaft 6 is plated with chrome Cr for reducing wear, and friction, and enhancing
• the surface of the drum shaft 6 is plated with
• drum shaft 6 it is required to plate a sliding surface of the water seal 12 without fail.
• drum shaft 6 is formed of stainless steel
• pulsator 7 and the washing fins 7a provided at regular intervals thereon are formed as one body, it is not necessarily so.
• the washing fin 7a has at least one sloped surface in a radial
• the main surface of the pulsator 7 has a predetermined curvature, and an
• a maximum height 7a of the washing fin 7a of the pulsator 7 is 5 ⁇ 15% of the
• drum 3 and the tub 2 are mounted such that
• the tilted angle of 10 ⁇ 30° range can be
• tub 2 is below 30°.
• the drum 3 has a plurality of lifters 3 a on an inside
• the auto-balancers 9 may be mounted on the inside of the front
• the auto-balancer 9 may have a single fluid chamber, or more
• the auto-balancer 9 has a height ⁇ ' greater than a width ' W
• dampers for damping vibration of the tub 2 in spinning.
• front sides ground thereof enables convenient introduction, and talcing out of laundry. That is, when it is intended to introduce or take out laundry into/from the drum
• invention can improve the washing performance owing, to the pulsator 7 mounted inside
• the present invention can improve the washing performance significantly because the
• drum type washing machine of the present invention has the pulsator 7 mounted therein
• the pulley 15 is held or
• the washing performance can be
• the plunger lib may be placed in the holding
• drum 3 rotates due to the laundry placed on the pulsator 7.
• cutoff rib 220 projected toward the rear wall 300 of the drum from an inside of rear wall of the tub 2 cuts off the hot air introduced through the
• groove 160 in the spider 16 in a shape in complementary to a
• cutoff rib 220 prevents interference between the cutoff rib 220 and the
• portion 300a in a shape on the rear wall 700 of the drum in complementary to the shape
• the high temperature, high humid air having substantially center blown along
• the hot air is introduced from the drying duct 30 into the drum 3
• connection of the drying duct 30 to the tub 2 resolves the problem of wear and tear of
• connection of the drying duct 30 to the tub 2 makes an upper side
• drying duct 30 and the tub 2 like the related art.
• the drying duct 30 attached to the tub 2 also serves as a balancer weight, to
• the rear wall 300 of the drum can maximize a flow rate of the hot air introduced into the
• the drum type washing machine of the present invention can reduce
• drum 3 enables effective reduction of vibration of the rear side.
• the tilted tub 2 also requires the drum 3 in the tub 2 to be tilted, to consume less washing water filled in the drum 3 in washing.
• the pulley 15 can rotate no more, to hold the
• the drum 3 may rotate in left/right directions alternately under
• the washing machine of the present invention has a greater back
• the washing water circulation spreads the laundry gathered on a
• the drum 3 can rotate in left/right
• drum type washing machine of the present invention can perform
• the washing may be performed by controlling the
• the drum type washing machine of the present invention can be any type washing machine of the present invention.
• a small sized pulsator may be rotatably mounted on an inside
• pulsator inside of the drum vary movement of the laundry and water circulation within
• the drum which improves a washing performance. That is, the positional change of the laundry caused by the sloped surface of the
• blown along an axis of the drum permits the air to penetrate deep into an inside of the drum, to improve a drying efficiency, and a drying performance.
• the drying duct also serving as a balance weight improves a balance sustaining

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• Engineering & Computer Science (AREA)
• Textile Engineering (AREA)
• Main Body Construction Of Washing Machines And Laundry Dryers (AREA)

Applications Claiming Priority (5)

Publications (2)

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ID=35509702

Family Applications (1)

Country Status (6)

Cited By (1)

Families Citing this family (28)

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• 2005
  • 2005-06-20 AU AU2005254910A patent/AU2005254910B2/en not_active Ceased
  • 2005-06-20 US US10/552,962 patent/US7886391B2/en active Active
  • 2005-06-20 WO PCT/KR2005/001909 patent/WO2005124006A1/en not_active Application Discontinuation
  • 2005-06-20 ES ES05764998.0T patent/ES2593315T3/es active Active
  • 2005-06-20 EP EP05764998.0A patent/EP1759049B1/de not_active Not-in-force
  • 2005-06-20 PL PL05764998T patent/PL1759049T3/pl unknown

Non-Patent Citations (1)

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